Studies on the Effects of Five Kinds of Divalent Metal Ions on LDH Activity by Single Sweep Voltammetry

Abstract

Abstract: In this paper the effects of five kinds of divalent metal ions on LDH activity were studied. The results showed that Zn ²⁺ and Ca ²⁺ do not affect LDH activity while Mn ²⁺ exerted inhibitory effect. At low concentrations, Cu ²⁺ and Mg ²⁺ slightly stimulate LDH activity. From the binding model of ternary complex, it could be concluded that LDH is a non-metallic enzyme and Zn ²⁺ did not play a catalytic role in LDH. The different effects of Cu ²⁺, Mg ²⁺, Mn ²⁺ and Ca ²⁺ ions were also discussed.

Key words: LDH, Divalent metal ions, Catalysis, Single sweep voltammetry

CLC Number:

O657.14

TrendMD:

WANG Xun-Qing, GAO Xiao-Xia  . Studies on the Effects of Five Kinds of Divalent Metal Ions on LDH Activity by Single Sweep Voltammetry[J]. Chem. J. Chinese Universities, 1998, 19(4): 543.

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Studies on the Effects of Five Kinds of Divalent Metal Ions on LDH Activity by Single Sweep Voltammetry

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